[pavel_lishin]

Something odd about that ultra-blue color - when I'm outside at night, I can see any lit up sign in relatively good focus with my glasses on. Green signs, red signs, etc.

But anything blue always looks blurry unless I'm very close to it.

[fernmyth]

The lenses in your eyes refract different wavelengths at different angles - think of a rainbow coming out of a prism. Only one wavelength can be perfectly tuned to project a clear image onto your retinas. We are optimized for green, red is close enough, but blue always looks blurry.

[pavel_lishin]

Huh, I like that theory. Nobody else has ever mentioned experiencing the same thing as I do, though.

[chopin]

It's called color aberration and a big thing in telescopes using lenses.